Re: Lights approaching velocity.
- From: bz <bz+nanae@xxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 2 Mar 2007 18:59:57 +0000 (UTC)
"Sue..." <suzysewnshow@xxxxxxxxxxxx> wrote in
news:1172859398.822352.279340@xxxxxxxxxxxxxxxxxxxxxxxxxxx:
On Mar 2, 10:53 am, bz <bz+...@xxxxxxxxxxxxxxxxxxxx> wrote:.....
"Sue..." <suzysewns...@xxxxxxxxxxxx> wrote
innews:1172846820.890517.239050@xxxxxxxxxxxxxxxxxxxxxxxxxxxx:
<< Where can we find matter that travels in a straight line? >>
Have you never seen pair of knickers sliding on
a tight clothes line ?
Not straight enough. Besides, I was taut to leave knickers alone unless
someone asked me to help take them down.
http://www.tlc-direct.co.uk/Images/Products/size_3/VACL30M.JPG
The approximations of Newton are still useful for computing the
trajectory of an artillery shell.
Yes they are quite good and extremely useful.
But not useful for that task on the planet in 'Mission of Gravity'.
There, the g field at the pole is about 300 g and at the equator it is
about 3 g. Written from the PoV of a (native) sailer on the planet.
http://www.magicdragon.com/EmeraldCity/extraterrestrials/alien9.html
The approximations of Einstein are still useful for computing the
trajectory of a moon/mars/jupiter etc., mission and for building a
syncrotron.
It is usless for the moon because we don't know whether
to measure the synchrotron before or after we re-calibrate
the clock, if that is where the synchroton is.
You worry too much. It turns out that we didn't even need to take our
vacuum pumps to the moon with us.
The cyclotron didn't care whether we recalibrated our clocks etc., before
leaving earth or after we landed on the moon.
As long as we used the SAME clocks to run the thing as we used to design
it, it worked just fine.
GR is useful for generating volumes of arXiv preprints that
no-one can prove is hokum and a continuing inspiration
for woulda-been fiction writers.
Seems to provide plenty of opportunities for you bash it.
But you have yet to show me any data which invalidates GR.
Newton's, however, are useless for those tasks.
When does Newton say the students should perform
their acceleration experiment on the moon; before
or after they correct the clock that Einstein predicts
will change?
Newton had enough trouble climbing to the top of the tower of babel. He
missed the moon trip because he was late. Poor Late Newton.
http://www.iit.edu/~smile/ph9605.html
--
bz
please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.
bz+nanae@xxxxxxxxxxxxxxxxxxxx
.
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